#pragma once
#include<string.h>

#define SIZE 1024

#define FLUSH_NOW 1
#define FLUSH_LINE 2
#define FLUSH_ALL 4

typedef struct IO_FILE{
    int fileno;
    int flag;
    //char inbuffer[SIZE];
    //int in_pos;
    char outbuffer[SIZE];
    int out_pos;
}_FILE;

_FILE *_fopen(const char*filename,const char*flag);
int _fwrite(_FILE*fp,const char*s,int len);
void _fclose(_FILE*fp);
